Filament for a smart bulb



FIG. 1 is a front elevational view of a filament for a smart bulb;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design.

The design shown is not to be limited to any particular size and may be scaled larger or smaller. 

CLAIM An ornamental design for a filament for a smart bulb, as shown and described. 